BTS was formed around 2010 as a group project under Big Hit Entertainment, and they officially debuted as BTS on June 13, 2013 with the single album “2 Cool 4 Skool.”

Quick Scoop: When Was BTS Formed?

Let’s break it down into two key moments, since “when was BTS formed” can mean slightly different things:

  1. Initial formation (project stage)
    • Around 2010 , producer Bang Si-hyuk started assembling a hip-hop–focused group called Bangtan Sonyeondan (“Bulletproof Boy Scouts”) centered around RM.
 * Over the next few years, the lineup changed and solidified into the seven members we know today: RM, Jin, Suga, J-Hope, Jimin, V, and Jungkook.
  1. Official group formation in K‑pop terms (debut year)
    • Most K‑pop and fan sources describe BTS as a boy band formed in Seoul in 2013 , because that’s when they debuted publicly as an idol group under the name BTS.
 * Their **official debut date** is **June 13, 2013** , with the song “No More Dream” from the album _2 Cool 4 Skool_.

So, depending on how precise you want to be:

  • If you mean “when did the project/group start being put together?” → 2010.
  • If you mean “when did BTS officially become a K‑pop group and enter the industry?” → 2013 , debuting on June 13, 2013.

Mini Timeline

  • 2010 – Bang Si-hyuk starts building a hip-hop group around RM; the early form of BTS is conceived.
  • 2010–2012 – Trainee period, lineup changes, final seven members selected.
  • June 13, 2013 – BTS officially debuts with “No More Dream” and is widely recognized as having been formed as a K‑pop boy band in 2013.

In most fan discussions and quick facts, when people say “when was BTS formed,” they usually mean 2013 , with June 13 as the key date.

TL;DR: BTS began forming as a group project in 2010 , but they are generally said to have been formed (and debuted) as BTS in Seoul in 2013 , on June 13, 2013.

Information gathered from public forums or data available on the internet and portrayed here.